Home / 704,831,090.80-1,057,246,636.20-429,332,076.40

Finding the Fourth Proportional to 704,831,090.80, 1,057,246,636.20 and 429,332,076.40

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Solution

The fourth proportional to 704,831,090.80, 1,057,246,636.20 and 429,332,076.40 is: 643,998,114.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    704,831,090.80 : 1,057,246,636.20 = 429,332,076.40 : x
  2. Step 2: Convert to fraction form
    704,831,090.80/1,057,246,636.20 = 429,332,076.40/x
  3. Step 3: Cross multiply
    704,831,090.80x = 1,057,246,636.20 × 429,332,076.40
  4. Step 4: Simplify right side
    704,831,090.80x = 453,909,893,586,661,376
  5. Step 5: Solve for x
    x = 453,909,893,586,661,376/704,831,090.80
  6. Step 6: Final answer
    x = 643,998,114.60

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.